Physical World Map by Marie Tharp
The most accurate depiction of the world's ocean floor is with the Marie Tharp maps. Two similar titles, World Ocean Floor and Floor of the Oceans, feature seamounts, fracture zones, continental shelves, ridges and plateaus. The World Ocean Floor Map is available in two sizes: Small 38" x 23",and Large 76" x 44". The Floor of the Oceans is only available in the smaller size of 39" x 25".